Installation Guide

OPERATION
OVERVIEW
8 | MINI™ SERIES TANKLESS ELECTRIC WATER HEATERS WWW.STIEBEL-ELTRON-USA.COM
6.3 Important information before supplying
power to unit
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Air in the cold water pipe will destroy the bare-
wire heating system of the Mini. If the water
supply to the Mini has been interrupted, for example
due to the risk of frost or work on the water pipe, the
following steps must be carried out before the unit is
used again.
» 1. Turn off circuit breaker.
» 2. Open a hot water tap downstream of the unit for as
long as is necessary for the unit and the cold water
pipe to be free of air.
» 3. Turn on circuit breaker.
All information in these Instructions for Use and
Installation must be followed carefully. They provide
important information with regard to safety,
operation, installation, and maintenance of the
device.
6.4 Hot water output
Model Wattage Typical hot water
output
Mini 2* 1.8 kW 0.32 GPM
Mini 2.5 2.4 kW 0.50 GPM
Mini 3 3.0 kW 0.50 GPM
Mini 3.5 3.5 kW 0.66 GPM
Mini 4 3.5 kW 0.66 GPM
Mini 6 5.7 kW 1.00 GPM
*Note: Mini 2 is internally restricted to 0.32 GPM
6.5 Incorrect use
The following are not permitted and will void the factory
warranty:
- Installation of the appliance where it is at risk
from frost
- Installation in rooms where the appliance is at risk
from explosions as a result of dust, gases or vapors
- Ignoring safety clearances and safety zones
- Incorrect power connection
- Operation of the appliance without water fl owing
through the unit, or with air in the lines (see "Initial
startup", section 8, pg. 10)
- Operation of the unit with the cover off
- Heating liquids other than potable water
6.6 First steps to be taken in the event of
malfunction
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WARNING: ALWAYS SHUT OFF POWER AND
WATER TO THE UNIT PRIOR TO REMOVING THE
FILTER SCREEN. FAILURE TO DO SO MAY CAUSE SERIOUS
BODILY INJURY OR DEATH.
» Check the circuit breaker
» Check the fi lter screen for scale blockage or dirt
accumulation. See also ”Troubleshooting” section 10
pg. 11.
6.7 Maintenance and care
!
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MAINTENANCE WORK, SUCH AS CHECKING
ELECTRICAL SAFETY, MAY ONLY BE CARRIED
OUT BY A QUALIFIED INSTALLER.
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WARNING: ALWAYS SHUT OFF POWER AND
WATER TO THE UNIT PRIOR TO REMOVING
THE FILTER SCREEN. FAILURE TO DO SO MAY CAUSE
SERIOUS BODILY INJURY OR DEATH.
Regularly clean and descale the fi lter screen located in
the cold water inlet connection and if necessary replace.
Always shut off power and water to the unit prior to
removing the fi lter screen.
A damp cloth is suffi cient for cleaning of the unit's housing.
Do not use any abrasive or corrosive cleaning agents.